One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,6)(7,8)(10,14)(11,15)(17,18,21,22)(19,23,24,20)(25,26)(27,28)(29,31)(30,32)(1,2,4,6)(3,5,7,8)(9,10)(11,16)(12,15)(13,14)(17,18)(19,23)(20,24)(21,22)(25,27,30,31)(26,29,32,28)(3,7)(5,8)(10,14)(12,16)(18,22)(20,23)(25,28,30,29)(26,27,32,31)(1,2)(3,8)(4,6)(5,7)(9,11)(10,12)(13,15)(14,16)(17,19)(18,23)(20,22)(21,24)(25,29,30,28)(26,31,32,27)(1,3)(2,5)(4,7)(6,8)(9,12)(10,15)(11,14)(13,16)(17,20,21,23)(18,24,22,19)(25,26)(27,29)(28,31)(30,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.